An Egyptian worker peers from the window of the damaged Museum of Islamic Art after an explosion at the Egyptian police headquarters in downtown Cairo, Friday, Jan. 24, 2014. Egypt’s antiquities minister says the car bombing that struck the main police headquarters in Cairo earlier in the day has caused major damage to the nearby Islamic art museum.(AP Photo/Khalil Hamra)

CAIRO (AP) — A truck bomb struck the main security headquarters in Cairo on Friday, one of a string of bombings targeting police within a 10-hour period, killing six people. The most significant attack yet in the Egyptian capital fueled a furious backlash against the Muslim Brotherhood amid rising fears of a militant insurgency.

The mayhem on the eve of the third anniversary of Egypt’s once-hopeful revolution pointed to the dangerous slide Egypt has taken since last summer’s military ouster of Islamist President Mohammed Morsi: A mounting confrontation between the military-backed government and Islamist opponents amid the escalating violence.

In the hours after the blast, angry residents — some chanting for the “execution” of Brotherhood members — joined police in clashes with the Login to read more